add save person test to persons_spec
add delete person test to persons_spec
add get person test to persons_spec
add get all persons test to persons_spec
add save burrito test to burritos_spec
add tests to check delete burrito, get burrito, and get all burritos
add tests to check save restaurant, delete restaurant, get restaurant, and get all restaurants
add save person method to persons repo
add test to check if persons name updates when saving a person who already has an id
add delete person method
add method to get person by id from persons table
add method to get all persons from persons table